LEASES - Other Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating cash flows for finance leases	$ 1	$ 1
Operating cash flows for operating leases	34	41
Financing cash flows for finance leases	5	11	$ 12
Right of Use Assets Obtained in Exchange in Exchange for Lease Obligations [Abstract]
Operating leases	7	27
Finance leases	$ 86	$ 7